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(Nomodel.)

C. H. PARSHALL, Jr.

LUBRIGATOR. y No. 328,335. Patented Oct. 13, 1885.

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v INVENTOR 'nf praa'fllz ATTORNEYS WITN ESSES N. PEYERS.Phub-Liihampher, Washington. D. C.

UNITED STATES PATENT OFFICE.

CHARLES H. PARSHALL, JR., OF DETROIT, MICHIGAN, ASSIGNOR TO THE MICHIGANLUBRICATOR COMPANY, OE SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 328,335, dated October13, 1885.

Application filed March 14, 1885.

To all whom, it ntuay concern:

Be it known that LGHARLEs H. PARsHALL, Jr., a citizen of the UnitedStates, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inLubricators; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawing, and to letters or figures ofreference marked thereon, which forms apart of this specification.

The gure of the drawing is a sectional view.

This invention relates to lu'bricators for steam-engines, being,however,more especially intended for locomotive-engines; and it consists in theconstruction and novel arrangement of devices, all as hereinafter setforth, and pointed out in the appended claims. In this lubricator thewater is supplied through an openingin the bottom by a pipe leading fromthe boiler, and connected therewith belowthe low-water line, so that thewater will at all times be present in said pipe.

In the accompanying drawing the letter A represents the oil-reservoir.

B is a valve in the pipe which supplies the water from the boiler. Theupper end of this pipe is screwed up through the bottom of theoil-reservoir, a threaded opening being provided for the purpose.

R is an extension of the water-pipe, extending to nearly the top of thereservoir.

P is a cheelrvalve, located at the connection of the pipe with thereservoir, which, when closed, prevents any backflow of oil into theboiler. Above the valve P a bridge may be provided, which prevents thevalve P from being forced higher than the lift required, and keeps it inproper position for closing.

C is the valve for drawing off the water. This is made in connectionwith the glass tube D, which is parallel with the reservoirA andcommunicates with the same, serving to show the amount of water and oilin the reservoir.

E is the oil-lling plug at the top of the oilreservoir.

F is the valve to regulate the feed of the oil. This valve is providedwith a threaded stem Serial No. 159,879. (No model.)

which extends downward through the dropper point or nipple I.

H is a glass tube surrounding the nipple above, and extending downwardto a pipe, S, and connected with the same by a nut, u. This glass tubeshows the oil falling in visible drops through the same. The nipple Iextends below the nutu,and is so made in order that the rate ofdischarge ofthe drops can be easily noted and regulated.

J is a double-seated automatic valve in the pipe or passage S, which isdesigned to close and form an oil trap. The lower end of the valve J isprovided with the ordinary conical face. The seat s of' the main body ofthe valve-plug L is concave and recessed in its side wall, as indicatedat fv, so that the groundsurfaces z and t of the plug L,above and below,are true to the valve J, while at the recess o the plug L is of largersize. The body of the valve is made with lateral openings lc above itscylindrical base Z. When the valve is slightly lifted from its seat, theoil will pass freely out of the side openings by way of the recess inthe plug L; but when the valve is in a higher position it will close theoil-passage. When raised to its upper position,it closes and preventsthe oil from flowing too freely when the steam is cut off from above thepoint at which the lubricator is attached-as, for instance, in thedry-pipe of a locomotive.

K is a regulator-screw adapted to regulate the lift of the double-seatedvalve J.

L is a plug or removable seat for the valve J, which is designed to beeasily taken out, when it is required to remove the valve J, withoutdetaching any other working part of the lubricator.

W indicates the water-pipe which communicates with the valve.

The oil passes from the glass tubeH through the pipe or passage S to theparts to be lubricated.

The glass tubes are connected to bearings,

IOO

which are secured to the oil-reservoir by the packing-nuts u u.

The operation is as follows: Vhen placed, for instance, in the cab of alocomotive, the pipe S is connected to the dry-pipe or to pipes leadingdirectly to the steam-chest, which are usually under the covering of theboiler. The oil passes down through the glass tube H in visible drops,falling by gravitation. The lower end of the pipe YV is secured to theboiler below the low-water line. The pressure in the boiler forces thewater into 'the oil-reservoir through the valve B and through thecheckvalve, and the specific gravity of the Water being greater thanthat ofthe oil, the latter is lifted to the top of' the oil-reservoirand passes through the opening G and the regulatingvalve F to thesight-feed chamber H, whence it passes by the pipe S to the parts to belubricated.

Having described this invention, what I claim, and desire to secure byLetters Patent, is-

l. The co1nbination,with a lubricator, of an automatic double seat valveclosing in its highest and lowest portions and having a passage betweenthe upper and lower ground seat-surfaces, substantially as specified.

2. The combination, with the oil-passage of a lubricator, of thedouble-seat automatic oilchecl; valve J, havingthe lateral openings 7cin its cylindrical portion, substantially as specified.

3. In a lubricator, the combination,with the oil-reservoir and thecheck-valve at its base in the water-supply, of the rim-wall projectingabove thecheck-valve and forming a watertrap to prevent thebackowfsubstantially as specified.

4. In a lubricator, the combination,with the oil-reservoir having itsWater-supply at its upper end and its oil-outlet above, the watertrapbelow, ofthe lateral glass chambers Dand H, the regulator dropvalve F,and the discharge-passage S, having the double-seat auto- 4 5 maticoil-trap valve, substantially as specified. In testimony whereof I affixmy signature in presence of two witnesses.

CHAS. H. PARSHALL, JR. Vitnesses:

JNO. B. CoRLIss, F. V. MARVIN.

